Rivet gun



FIG. 1 is a front elevational view of the rivet gun,

FIG. 2 is a left-hand end view of the gun,

FIG. 3 is a right-hand end view of the gun,

FIG. 4 is a top plan view of the gun, and

FIG. 5 is a bottom plan view of the gun.

The rear elevational view of the strap is substantially a mirror image of FIG. 1. 

The ornamental design for a rivet gun, as shown. 